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DR.DAC3, which is a technically perfect integration of the top level DAC and powerful dual headphone amps as well as having USB audio features that can build a computer based HiFi audio system, provides the most advanced digital audio solutions. It adopts the highest VT1731 Envy USB Audio Controller by VIA Technologies, Inc., which supports USB 2.0 Hi-Speed (480 Mbps, asynchronous), to support 24bit / 192KHz in Optical/Coaxial Input as well as USB Input mode and also adopts PCM1794, TI’s highest DAC with a dynamic range reaching to 129 dB to hear high-quality sound source with rich resolution and HiFi sound quality.